Cylindrical housing for a modular lighting system



FIG. 1 is a perspective view of the cylindrical housing for a modular lighting system showing my new design;

FIG. 2 is a top plan thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof, the rear elevational view, the right and the left side elevational views being the same; and,

FIG. 5 is a perspective exploded view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a cylindrical housing for a modular lighting system, as shown and described. 